@article{kim2016impact,
  title = {Impact of the Smart City Industry on the Korean National Economy: Input-Output Analysis}
  author = {Kim, Kyunam and Jung, Jung-Kyu and Choi, Jae Young},
  journal = {Sustainability},
  url = {https://www.mdpi.com/2071-1050/8/7/649},
  year = {2016}
}